I would like to hear some comparisons of input tubes for this amp. So far, I have only used 6N1P, and 6N2P tubes. I prefer the latter. They have higher gain, and for my purposes, it works best. The sound is more harmonic to my ears. The only downside is that one of the tubes makes a bit of noise now and then. I did receive 2 more of them today from The Tube Store, but haven't tried them yet. Maybe I would like 6922 types as well.

When I owned the 34.2 amp I tried 6922, 6DJ8, 7DJ8. . . never liked them. 6N1P and 6N2P were what I used and loved. The 6N2P. . . really hard to find ones that aren't noisey. So I think I used 6N1P after all the experimentation.

OK, I don't own an integrated but do have a pair of the ZSM Monoblocks. I have been running a pair of Amperex 7308's as inputs in these and my Torii MK IV and now my CSP3...I like them. You can read the reviews for sound quality. A cheaper alternative that I really like that isn't quite as extended on the top end and has a nice detailed and warmer presentation...more of the traditional tubey sound, is a pair of Amperex Bugle Boy 6DJ8's. Despite their reputation, they can be had relatively cheaply...I got my NOS/High testing with good print 1964's for $30 plus shipping. And if you have a tester, their is a guy selling a lot of untested pairs pulled from lab equipment for as little as $10 starting bid, $15 for ones with good print. They come with an option of return if not pleased. If I had a tester, I'd be buying several pair and returning any that didn't measure up. I doubt he'll get very many, if any, bidders.

Next, I need a little info...does anyone know where Brimar 6922's were made. Does anyone know how they sound from experience? Mark.

"The man that hath no music in himself, nor is not moved with the concord of sweet sounds, is fit for treasons, deceptions, and spoils;The motions of his spirit are dull as night and his affections dark as Hell. Let no such man be trusted." William Shakespeare

Brimar tubes tend to be rebranded from elsewhere.Earlier ones are more likely to be British Mullard Blackburn/Mitcham or in Holland Herelen . Later ones could have even come from Eastern Europe or from the States.

The only way to be sure is to look at the factory etchings on the tubes.